[mikemhg]

Uhhh, I'd say there's definitely some notable detriments of overeating protein.

Most protein carries fats additionally, if you're overeating focused on protein, you have the possibility of gaining more fat, which can also affect your cholesterol levels. Protein ≠ Protein. Elevated LDL levels is not something to scoff at. It's another reason why I've seen guys who focus on cramming down isolate shakes and then wonder why they're packing on fat at the same time.

Gut health - Overeating protein can result in gut health issues, motility and digestion problems, diverticulitis, kidney, heart complications, etc. This is all well documented as a result of overeating in the bodybuilding community.

Cost - Less on the hierarchy of notables, but certainly one for some. Why throw money away on wasted food/calories, if not necessary?

At the end of the day, no methodology truly applies to everyone, we're all different, what may work for one may not work for you, so you can't take online crap as gospel.

You're far better off experimenting to see what exactly works for you, and the only way to do that is with time, effort, and tracking.